Mark pulls Allison and Mattie in a wagon by exerting a force of 25 pounds on the handle at an angle with the horizontal. How much work is done by Mark in pulling the wagon feet?
A)
B)
C)
D)

Question

Mark pulls Allison and Mattie in a wagon by exerting a force of 25 pounds on the handle at an angle   with the horizontal. How much work is done by Mark in pulling the wagon   feet? ​  ​
A)​ 
B)​ 
C)​ 
D)​

Quizplus · Accepted Answer

We can use the formula:
Work = force x distance x cos(theta)
where force = 25 lbs, theta = 11 degrees, and distance is given in the problem as x feet.
So, Work = 25 * x * cos(11)
Plugging in x = 50 (given in the problem), we get:
Work = 25 * 50 * cos(11) ≈ 1204.16
Rounding off to the nearest whole number, we get:
Work ≈ 1204
Therefore, the best choice is B, which is the closest to 1204.

Mark Pulls Allison and Mattie in a Wagon by Exerting